Publications
QoS-oriented negotiation in disk subsystems." Data Knowl. Eng. 58 (2006): 107-128.
PDF (520.7 KB)
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Querying XML with Constraints." In International Conference on Internet Computing (1), 171-177., 2001.
"Replication Based on Objects Load under a Content Distribution Network." In ICDE Workshops, edited by Roger S. Barga and Xiaofang Zhou, 53. IEEE Computer Society, 2006.
"Replication in Mirrored Disk Systems." In ADBIS, edited by Witold Litwin, Tadeusz Morzy and Gottfried Vossen, 224-235. Vol. 1475. Lecture Notes in Computer Science 1475. Springer, 1998.
"Requirements and architecture design principles for a smart city experiment with sensor and social networks integration." In Panhellenic Conference on Informatics, edited by Panayiotis H. Ketikidis, Konstantinos G. Margaritis, Ioannis P. Vlahavas, Alexander Chatzigeorgiou, George Eleftherakis and Ioannis Stamelos, 327-334. ACM, 2013.
PDF (226.39 KB)
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Retweeting Activity on Twitter: Signs of Deception." In PAKDD (1), edited by Tru Cao, Ee-Peng Lim, Zhi-Hua Zhou, Tu-Bao Ho, David Cheung and Hiroshi Motoda, 122-134. Vol. 9077. Lecture Notes in Computer Science 9077. Springer, 2015.
PDF (1.87 MB)
Dataset+RTGEN code (116.02 MB)
Presentation (2.41 MB)
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Security Model for XML Data." In International Conference on Internet Computing (1), 400-406., 2001.
C24.pdf (95.6 KB)
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Security Services." In Encyclopedia of Database Systems, edited by Ling Liu and Tamer M. Ozsu, 2546-2547. Springer US, 2009.
"Seek Distances in Disks with Two Independent Heads Per Surface." Inf. Process. Lett. 37 (1991): 37-42.
"Semantic retrieval of multimedia data." In MMDB, edited by Shu-Ching Chen and Mei-Ling Shyu, 36-44. ACM, 2004.
"Semi-supervised Concept Detection by Learning the Structure of Similarity Graphs." In MMM (1), edited by Shipeng Li, Abdulmotaleb El-Saddik, Meng Wang, Tao Mei, Nicu Sebe, Shuicheng Yan, Richang Hong and Cathal Gurrin, 1-12. Vol. 7732. Lecture Notes in Computer Science 7732. Springer, 2013.
PDF (533.63 KB)
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SEMSOC: SEMantic, SOcial and Content-Based Clustering in Multimedia Collaborative Tagging Systems." In ICSC, 128-135. IEEE Computer Society, 2008.
"Sensors talk and humans sense Towards a reciprocal collective awareness smart city framework." In ICC Workshops, 189-193. IEEE, 2013.
PDF (832.13 KB)
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Sentiment analysis leveraging emotions and word embeddings." Expert Systems with Applications 69 (2017): 214-224.
PDF (798.98 KB)
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A similarity based approach for integrated Web caching and content replication in CDNs." In IDEAS, edited by Bipin C. Desai and Shyam K. Gupta, 239-242. IEEE Computer Society, 2006.
C54.pdf (119.92 KB)
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A simulated annealing approach for multimedia data placement." Journal of Systems and Software 73 (2004): 467-480.
PDF (465.59 KB)
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Smart Cities at Risk!: Privacy and Security Borderlines from Social Networking in Cities. WWW ’18 Companion . Lyon, France: ACM, 2018.
PDF (536.28 KB)

Smart Cities Data Streams Integration: experimenting with Internet of Things and social data flows." In WIMS, edited by Rajendra Akerkar, Nick Bassiliades, John Davies and Vadim Ermolayev, 60. ACM, 2014.
"Smart Cities Tales and Trails." In Internet Science - Third International Conference, INSCI 2016, Florence, Italy, September 12-14, 2016, Proceedings., 2016.
PDF (1.24 MB)
Presentation (13.34 MB)
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Social Data Sentiment Analysis in Smart Environments - Extending Dual Polarities for Crowd Pulse Capturing." In DATA, edited by Markus Helfert, Chiara Francalanci and Joaquim Filipe, 175-182. SciTePress, 2013.
PDF (371.31 KB)
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Social networking trends and dynamics detection via a cloud-based framework design." In WWW (Companion Volume), edited by Alain Mille, Fabien L. Gandon, Jacques Misselis, Michael Rabinovich and Steffen Staab, 1213-1220. ACM, 2012.
PDF (1.36 MB)
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Social Web Mashups Full Completion via Frequent Sequence Mining." In SERVICES, 9-16. IEEE Computer Society, 2011.
C83.pdf (364.9 KB)
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Storage and Access Control Issues for XML Documents." In Encyclopedia of Information Science and Technology (V), edited by Mehdi Khosrow-Pour, 2616-2621. Idea Group, 2005.
"A Structure-Based Clustering on LDAP Directory Information." In ISMIS, edited by Aijun An, Stan Matwin, Zbigniew W. Ras and Dominik Slezak, 121-130. Vol. 4994. Lecture Notes in Computer Science 4994. Springer, 2008.
C58.pdf (231.66 KB)
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A Study on Workload Characterization for a Web Proxy Server." In Applied Informatics, edited by M. H. Hamza, 779-784. IASTED/ACTA Press, 2003.
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